What is ddo free sample?

DDO (Dungeons & Dragons Online) offers a free sample of their game for new players. The sample includes access to the introductory quest lines and allows players to create their own character with six different races and twelve different classes. The free sample is available to play for an indefinite amount of time, but some limitations apply such as not being able to level up beyond level 4 and not being able to access certain game features. Players who enjoy the free sample may choose to subscribe to the full game to unlock additional content and features.